Answer:
\(-3/4 + 1/2log_{10}a\)Step-by-step explanation:
\(x=\sqrt{10a\sqrt{0.1} } /10=\)\(10^{1/2}a^{1/2}10^{-1/4}10^{-1}=\)\(10^{1/2-1/4-1}a^{1/2}=\)\(10^{-3/4}a^{1/2}\)\(log_{10}x=log_{10}(10^{-3/4}a^{1/2})=-3/4 + 1/2log_{10}a\)ASAP!!!!
how do i write the intercept form equation
y=a(x-p)(x-q)
when i know a=-16
p=-0.12
q=1.12
Answer:
y = -15x - 3.04
Step-by-step explanation:
1) First place down what you are given.
Y = a(x - p) (x - q)
2) Then Substitute.
a = -16
p = -0.12
q = 1.12
y = (-16)(x - (-0.12))(x - (1.12)
3) Do order of operations (PEMDAS)
y = (-16)(x + 0.12)(x - 1.12)
Now distribute
y = − 16 x − 1.92 + (x - 1.12)
y = -16x - 1.92 + x - 1.12
y = -16x + x - 1.92 - 1.12
y = -15x - 3.04
4)
You answer is:
y = -15x - 3.04
In which branch of statistics would a researcher acquire twenty-five 2000 Toyota Celicas, drive them until they had a major mechanical failure, record the final mileage, and then write a report for Car and Driver?
Answer:
The answer is "descriptive statistics".
Step-by-step explanation:
Descriptive statistics are short descriptive factors that add up a production set, that can be either a reflection of a whole or a sample population. It is broken down into cumulative frequency measurements and variance measurements. The study uses descriptive statistics to explain the profile of the respondents. People give simple summaries about the sample as well as the actions.
1. If a researcher accepts a true null hypothesis, she has made a _______ decision.a. businessb. hypotheticalc. incorrectd. correct
Answer:
d. correct
Step-by-step explanation:
if it helped u please mark me a brainliest :))
What is the congruence correspondence, if any, that will prove the given triangles congruent?
Answer:
The answer is option A SAS.We have a side,an angle and the last side.If this helps please mark me BRAINLIEST
Twice a number increased by 6 is at least 35.
Your taxi cab ride costs $0.75 per mile and a fee of $4.00 per ride. How far can you ride for $11.50?
Using the provided values with the data for the per ride fee and per mile cost, The answer is 10 miles.
What do you mean by cost?The term "cost" can have a variety of meanings depending on the context in which it is used. In general, it refers to the amount of money or resources that must be expended in order to acquire or produce something. In a business setting, cost typically refers to the expenses associated with manufacturing or acquiring a product or service, such as materials, labor, and overhead. In a personal finance context, cost might refer to the expense of purchasing a good or service, such as a car or a vacation.
What is selling price?Selling price, also known as the "price point" or "retail price," is the amount at which a product or service is offered for sale to the customer. It is the final price that the customer pays, which includes all costs associated with producing and bringing the product or service to market, as well as any profit margin that the seller wishes to make. The selling price is determined by a number of factors, such as the cost of production, competition, market demand, and the seller's desired profit margin.
total = 11.5
remaining = 11.5-4 = 7.5
distance = 7.5 /0.75 =10 miles
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The function f is given by f(x) = 4x3 â€" x4. On what intervals is the graph of f concave up? (A) (-0,0) and (2,0) (B) (-0,3) (C) (0, 2) only (D) (0, 3) only
f''(x) is positive on the interval (0, 2) only, so the graph of f(x) is concave up on that interval. The correct option is (C) (0, 2) only.
To determine the intervals on which the graph of f(x) = 4x^3 - x^4 is concave up, we need to find the second derivative f''(x) and check its sign.
f(x) = 4x^3 - x^4
f'(x) = 12x^2 - 4x^3
f''(x) = 24x - 12x^2
For the graph to be concave up, f''(x) > 0.
Setting f''(x) = 0, we get
24x - 12x^2 = 0
12x(2 - x) = 0
x = 0 or x = 2.
Now we can create a sign chart for f''(x) as follows:
Intervals: (-∞, 0), (0, 2), (2, ∞)
Test value: -1 1 3
f''(x): - + -
From the sign chart, we see that f''(x) is positive on the interval (0, 2) only, so the graph of f(x) is concave up on that interval.
Therefore, the correct answer is (C) (0, 2) only.
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What are the odds of drawing a jack or 10 out of 52 cards?
Answer:
The standard odds of drawing a jack, king, etc is always 1 in 13 from a shuffled 52 card deck. 4 suits,13 cards each, 1 jack for each suit
Step-by-step explanation:
Serena bought 4 packs of pencils and 12 notebooks
for fall semester which cost her $60.00. She then
bought 14 packs of pencils and 7 notebooks for
spring semester which cost her $70.00. How much
did each pack of pencils and each notebook cost?
Answer:
6
Step-by-step explanation:
that is what it said the correct answer was
Answer: pencil (x) = 3.00, notebook (y) = 4.00
Step-by-step explanation:
Let pencils be denoted using 'x', and notebooks 'y'.
4x+12y = 60, 14x+7y=70
Let us use the method of elimination. However, neither variable has the same coefficient, so let us multiply the first equation using 7, and the second using 2.
7(4x+12y = 60) => 28x+84y=420
2(14x+7y=70) => 28x+14y=140
Let us subtract the second equation from the first. This eliminates the first variable x, and gives the equation 70y=280
Dividing either side of the equation by 70, we get y=4.
If we substitute (plug in) y=4 for the first equation we get x=3
A recipe calls for 4 oz of raisins. If I use 224 oz of raisins, how many batches of this recipe did I make?
Answer:
56 batches
Step-by-step explanation:
224/4 = 56
batteries have capacities which are often given in units of ampere-hours (\text{ah}ah). the stored energy can be derived from the reported ampere-hours. consider a aaa battery which has a voltage of 1.25\text{v}1.25v and a capacity of 500\text{mah}500mah. what is the energy capacity of the battery in kilojoules? omit units from your answer.
The energy capacity of the battery in kilojoules is approximately 2.250 kJ.
The energy stored in a battery is given by the equation:
energy = capacity * voltage
The capacity of the battery is given in milliampere-hours (mAh), so we need to convert it to ampere-hours (Ah) by dividing by 1000. The voltage of the battery is given in volts (V). Plugging in the given values, we get:
energy = (500 mAh) / 1000 * 1.25 V = 0.625 Ah * V
Since 1 Ah is equal to 3600 Coulombs, the energy in Coulombs is:
energy (Coulombs) = 0.625 Ah * 3600 Coulombs/Ah = 2250 Coulombs
Since 1 Coulomb is equal to 1 Joule/Volt, the energy in Joules is:
energy (Joules) = 2250 Coulombs * 1 Joule/Coulomb = 2250 Joules
Since 1 kilojoule (kJ) is equal to 1000 Joules, the energy in kilojoules is:
energy (kJ) = 2250 Joules / 1000 Joules/kJ = 2.250 kJ
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Find a linear inequality with the following solution set. Each grid line represents one unit.
Answer:
y≤-x+1
Step-by-step explanation:
Since the line is slanted down and crossing through a point every one unit the slope is negative one. The line is also crossing 1 on the y-axis. This is the y-intercept. The last thing we need to know is which sign to use, less than, greater than, less than or equal to, greater than or equal to. We can immediately cross out less than and greater than because it is a solid line. The sign used on the graph is less than or equal to because it is a solid line shaded to the left. Now, we can use the formula with the information we have found to create the linear inequality.
Formula: y≤x+b
I put the less than or equal to sign there instead of the equal sign because the line graphed is less than or equal to. Plug in the information we have.
y≤-x+1
Using function notation.
f(x)≤-x+1
I have also attached a picture for you to see it is correct.
Hope this helps!
If not, I am sorry.
Frances has $5 in her bank. She finds $0. 25 under her bed. Then she finds $0. 40 more in her pocket. How much money does Frances have in all?
Step-by-step explanation:
Add all the money
$5+ 0.25+ 0.40= $5.65
quizlewhat is the measure that indicates how precise a prediction of y is based on x or, conversely, how inaccurate the prediction might be?
The residual standard error is a useful measure of the precision and accuracy of a regression model's predictions, and it helps to assess the goodness of fit of the model.
What is indetail explaination of the answer?The measure that indicates how precise a prediction of y is based on x or how inaccurate the prediction might be is called the residual standard error (RSE).
RSE is a measure of the variation or dispersion of the errors (or residuals) in a regression model. It is calculated by taking the square root of the sum of the squared residuals divided by the degrees of freedom.
The RSE provides an estimate of the standard deviation of the errors, and it is expressed in the same units as the response variable y.
In other words, the RSE measures the average distance that the observed values deviate from the predicted values in the regression model.
A smaller RSE indicates that the model is better at predicting the response variable, while a larger RSE indicates that the model has higher prediction error and may not be as accurate.
In summary, the residual standard error is a useful measure of the precision and accuracy of a regression model's predictions, and it helps to assess the goodness of fit of the model.
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The measure that indicates how precise a prediction of y is based on x, or conversely, how inaccurate the prediction might be, is called the residual standard error (RSE). The RSE is a measure of the average distance that the observed values fall from the predicted values, and it is typically expressed in the same units as the response variable (y). A smaller RSE indicates a better fit of the model to the data, and a larger RSE indicates a poorer fit.
what is –89.16 – 154.81
Answer:
The answer is -243.97
Step-by-step explanation:
-89.16-154.81= -243.97
help me out please T-T
Answer:
The simplyfied version would be 19/4
Show of work:
(1/4)^-2 = 4^2
3 × 8^2/3 × 1 = 12
(9/16)^1/2 = 3/4
4^2 - 12 + 3/4
Convert elements to fractions:
-12 × 4 + 3
---------- ----
4 4
Since the denominators are equal combine the fractions:
-12 × 4 + 3
---------------
4
-12 × 4 + 3 = -45
= -45/4
=4^2 - 45/4
4^2 = 16
16 - 45/4
16 × 4 - 45. 16 × 4 - 45
--------- ----- ----------------
4 4. 4
-> 16 × 4 - 45 = 19
= 19/4
Amy regularly works 20 hours per week at Smiths Dry
Cleaners Monday through Friday. She earns $10.10 per
hour and receives double-time pay for working nights. This
week Amy worked her regular 20 daytime hours plus an
additional 8 nightime hours.
What will her total pay be for the week? Round your answer
to the nearest cent.
$
15.50 x 20 = $310
31 x 8 = $248
310 + 248 = $558
Her total pay for the week is $558.
Hope you got a good grade!!! :)
find the expectation value of the position squared when the particle in the box is in its third excited state. answer this question with the correct coefficient of l2 for the expectation value.
The expectation value of the position squared when the particle in the box is in its third excited state is equal to \(\frac{9l^2}{8}\), where l is the length of the box. This is equal to nine-eighths of the length of the box squared.
The expectation value of the position squared when the particle in the box is in its third excited state can be calculated using the formula\(\langle x^2 \rangle = \frac{l^2}{8} \left( 2n^2 + 6n + 3 \right)\),
where n is the quantum number of the state and l is the length of the box. Here, n is 3, so the expectation value is equal to
\(\frac{l^2}{8} \left( 2 \times 3^2 + 6 \times 3 + 3 \right) = \frac{9l^2}{8}\).
This can be written as nine-eighths of the length of the box squared.
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Hun Lee is skateboarding and using energy at a rate of 400 kilocalories per hour. At what rate is Hun Lee using energy in minutes per calorie?
Answer:6.66666 kilocalories per hour
Step-by-step explanation:
brian and summer took a 12-mile canoe ride down a river in two hours. after stopping for lunch, they returned back up the river in three hours. find the rate of the canoe in still water and the rate of the current.
The rate of the canoe in still water is 5 miles per hour, and the rate of the current is 1 mile per hour.
Let's use the letters "c" for the canoe's speed in still water and "r" for the current's speed. The formula is as follows:
Rate times distance
establishing two equations, one for the upstream trip and one for the downstream trip.
Trip downstream:
12 miles is the distance.
rate = c plus r. (since the current is helping them)
t = two hours
We thus have:
12 = (c + r) × 2
When we simplify this equation, we obtain:
6 = c + r
Trip upstream:
12 miles is the distance.
rate equals c-r (since they are now going against the current)
three hours.
We thus have:
12 = (c - r) × 3
When we simplify this equation, we obtain:
4 = c - r
There are now two equations:
6 = c + r
4 = c - r
By combining the two equations, we may find the value of one of the variables:
6 + 4 = 2c
If we simplify, we get:
10 = 2c
When you divide both sides by 2, you get:
c = 5
To solve for the other variable, we may now re-insert this value into one of the equations. Let's apply the formula:
6 = c + r
With c = 5, we obtain:
6 = 5 + r
5 is subtracted from both sides to yield:
r = 1
In still water, the canoe moves at a rate of 5 miles per hour, while the current moves at a rate of 1 mile per hour.
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✓-90= Ai√B
What is the value of A?
What is the value of B?
Answer:
A = 3, B = 10
Step-by-step explanation:
\(\sqrt{-90}\)
= \(\sqrt{9(-1)(10)}\)
= \(\sqrt{9}\) × \(\sqrt{-1}\) × \(\sqrt{10}\)
= 3i\(\sqrt{10}\)
in the form Ai\(\sqrt{B}\)
with A = 3 and B = 10
if x=5, y=-3, and z=-7 z=-7, evaluate 3x^2-9y/yz
pls help asap if you can!!
The ∆ABC is an isosceles triangle and have the base angles m∠A and m∠C equal to 51° and the angle m∠B is equal to 78°.
What is an Isosceles triangleAn isosceles triangle have the measure of its base angles to be equal, and the sum of the interior angles sum up to 180°.
Given that sides AB ≅ BC, then the triangle ∆ABC has two sides with similar length and base angles so;
angles m∠A and m∠C are the base angles are both equal to 51°
m∠B = 180° - (51 + 51)° {sum of interior angles of a triangle}
m∠B = 180° - 102°
m∠B = 78°
Therefore, the isosceles triangle ∆ABC have the base angles m∠A and m∠C equal to 51° and the angle m∠B is equal to 78°.
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what is 21 1/2 -15 7/10?
Answer:
5.8 lemme know if im wrong :)
Step-by-step explanation:
Answer:
5 4/5. ( decimal 5.8)
Step-by-step explanation:
21 1/2 -15 7/10
= 43/2 - 15 17/10
=43/2 - 157/10
=29/5
= 5 4/5
Find the sum of all the two-digit numbers that divide 170 with a remainder of 5.
WILL MARK BRAINLIEST IF ITS RIGHT!!! PLEASE HELLPP!!!!!
Answer:
114
Step-by-step explanation:
To find - Find the sum of all the two-digit numbers that divide 170 with a remainder of 5.
Proof -
The 2 digit number is 11
170 = 11(15) + 5
The two digit number is 15
170 = 15(11) + 5
The two digit number is 33
170 = 33(5) + 5
The two digit number is 55
170 = 55(3) + 5
∴ we get
The two digit numbers are
11, 15, 33, 55
Their sum is equals to
11 + 15 + 33 + 55 = 114
When Bill Nye was first learning to type, he typed at a rate of 7.8 words per minute. How many words could he type in 4.7 minutes?
I KNOW HOW TO DO THIS BUT CAN SOMEONE TELL ME IF IM SUPPOSED TO ROUND OR KEEP IT AT 36.66 CAUSE ITS WORDS
Answer:
i think it might be 36.66
Step-by-step explanation:
mutiplied 7.8 x 4.7 i hope its right
Answer:
Since the question gives a one-place decimal for his rate, it will be appropriate to have a one-place decimal in your answer.
Step-by-step explanation:
It's about "significant digits" and since words consist of individual letters, it is possible to type a partial word.
please answer quickly
Answer:
1,253 cubic inches
Step-by-step explanation:
This container is made up of two rectangular prisms. The larger prism has volume 11*7*14=1078 cubic inches. The other one has volume 7*5*5=175 cubic inches. Adding these together, you get a total of 1,253 cubic inches. Hope this helps!
Answer:
1253 in^3
Step-by-step explanation:
The volume of the bottom container is
V = l*w*h
V = 11*14*7
V =1078
The volume of the top container is
V = l*w*h
V = 7*5*5
V =175
Add the two volumes together
V =1078+175 =1253 in^3
is this correct? If not please provide the correct answers
5. a. Constant of proportionality, k = 50/4 = 25/2
b. (8, 100) means 100 paper pieces are found in 8 boxes.
6. k = y/x = 20/5 = 4
b. The point, (25, 100) means there are 100 liters in 25 containers.
How to Find the Constant of Proportionality of a Graph?The constant of proportionality, k, can be found by picking any point that is located on the line, and using its coordinates (x, y) to find the ratio of y to x.
Thus, the constant of proportionality, k = y/x.
5. a. Using the point (4, 50) from the graph, the constant of proportionality, k = y/x = 50/4 = 25/2
The correct answer is 50/4 = 25/2.
b. The point (8, 100) would mean 100 paper pieces are found in 8 boxes.
6. a. Using the point, (5, 20), the constant of proportionality, k = y/x = 20/5 = 4
b. The point, (25, 100) would mean there are 100 liters in 25 containers.
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Does anyone else have to do i-Ready
Answer:
No
Step-by-step explanation:
Does anyone have to do DELTA-MATH
Answer: Can you send the question that you have.
Step-by-step explanation:
A park is in the shape of a rectangle and measures 40 m by 30 m. How much longer is it to walk from A to B along the diagonal of the park than to walk along the edges of the park?
20 m longer it is to walk from A to B along the diagonal of the walk than to walk along the edges of the park.
Given:
Assume ABCD is a rectangular park of right triangles ABC of length = 40m, width = 30m, ∠C = 90
In the right-angled triangle ABC,
By Pythagoras' theorem,
AB² = AC² + BC²
AB² = 30² + 40²
AB² = 900 + 1600
AB² = 2500
AB² = \(\sqrt{2500}\)
AB = 50m
The distance from A to B along the diagonal of the park = 50m
The distance from A through to C = 30m.
The distance from A through C to B = 30 + 40 = 70m.
Therefore, 20 m longer it is to walk from the diagonal of the park to walk along the edges of the park.
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